1 Answer
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Is there a way to see or edit the locations associated with iCloud Reminders within iCal?

In a word, "no".

Even in Mountain Lion Developer Preview with access to a standalone Reminders app (Reminders, or "todos" were removed from iCal - hooray!) there is no ability to see these from OS X. Note, all this could change, ML is Beta after all. But certainly in Lion and iCal, it's a straight no, and always will be.